Computer/Embedded Technology


Analog I/O board suited to tough environments

9 July 2008 Computer/Embedded Technology

The DMM-32DX-AT is Diamond Systems’ most advanced embedded PC/104 A/D board, and includes a comprehensive suite of analog and digital features to fit a wide variety of embedded application needs. It also has a number of features and options that make it suitable for operation in harsh environments, such as the use of only ceramic capacitors, and the possibility to replace all configuration jumpers with hardwired 0 Ω configuration resistors using dedicated footprints on the board for use in high-vibration environments. Optional conformal coating and latching connectors provide additional protection if needed, and the board is tested and guaranteed for operation from -40 to +85°C.

The board’s 32 A/D input channels feature high-accuracy 16-bit resolution 250 kHz maximum sampling rate, programmable input ranges, and user-selectable single-ended/differential configuration. The four D/A output channels feature user-selectable output ranges as well as a programmable waveform generator feature, 16-bit standard, 12-bit optional. The 24 digital I/Os feature bit by bit direction programmability as well as buffers for output current of -15 mA (logic 1)/64 mA (logic 0).

The onboard programmable counter/timer circuitry includes a 32-bit counter/timer for A/D and D/A sample timing, as well as a 16-bit counter/timer for general counting, timing, and programmable interrupt functions.

Using a patented auto-calibration technology, the board provides accurate analog measurements across its entire rated operating temperature range, ensuring reliable performance for critical applications.

Universal driver software, which provides a programming library that simplifies control of all the board’s features, is included free with the DMM-32DX-AT.



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